принудительное закрытие при отправке данных с помощью asynctask

Question

Я использую asynctask для отправки http на сервер. Я помещаю параметр передачи в свою асинтезу. это мой AsyncTask

private class ProcessSend extends AsyncTask<String, Boolean, String> { 

     //private HttpClient mHc = new DefaultHttpClient(); 
     HttpClient httpclient = new DefaultHttpClient(); 
     private ProgressDialog pDialog; 

     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 

      pDialog = new ProgressDialog(MainPetakTetap.this); 
      pDialog.setMessage("Loading Send ..."); 
      pDialog.setIndeterminate(false); 
      pDialog.setCancelable(false); 
      pDialog.show(); 

     } 
     @Override 
     protected String doInBackground(String... params) { 
      publishProgress(true); 
      // Do the usual httpclient thing to get the result 
      String code = params[0]; 
      String alamat = params[1]; 
      String batas = params[2]; 
      String lat = params[3]; 
      String lon = params[4]; 
      String luas = params[5]; 
      String tglA = params[6]; 
      String tglB = params[7]; 
      String userId = params[8]; 
      //Toast.makeText(MainPetakTetap.this, "response : " + name, Toast.LENGTH_LONG).show(); 
      String url; 
      url = CGlobalConfig.getURLRcvrPetakTetap(); 
      // Create a new HttpClient and Post Header 

      HttpPost httppost = new HttpPost(url); 

      //This is the data to send 
      //String MyName = "puja"; //any data to send 

      try { 
      // Add your data 
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1); 
      nameValuePairs.add(new BasicNameValuePair("code", code)); 
      nameValuePairs.add(new BasicNameValuePair("alamat", alamat)); 
      nameValuePairs.add(new BasicNameValuePair("info_batas", batas)); 
      nameValuePairs.add(new BasicNameValuePair("lat", lat)); 
      nameValuePairs.add(new BasicNameValuePair("lon", lon)); 
      nameValuePairs.add(new BasicNameValuePair("luas", luas)); 
      nameValuePairs.add(new BasicNameValuePair("tgl_awal", tglA)); 
      nameValuePairs.add(new BasicNameValuePair("tgl_akhir", tglB)); 
      nameValuePairs.add(new BasicNameValuePair("user_id", userId)); 

      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

      // Execute HTTP Post Request 

      ResponseHandler<String> responseHandler = new BasicResponseHandler(); 
      String response = httpclient.execute(httppost, responseHandler); 

      //This is the response from a php application 
      final String reverseString = response; 
      runOnUiThread(new Runnable() { 
        public void run() { 
         Toast.makeText(MainPetakTetap.this, "response : " + reverseString, Toast.LENGTH_LONG).show(); 
        } 
       }); 

      //saveContact(code); 
      } catch (final ClientProtocolException e) { 
       runOnUiThread(new Runnable() { 
         public void run() { 
          Toast.makeText(MainPetakTetap.this, "CPE response " + e.toString(), Toast.LENGTH_LONG).show(); 
         } 
        }); 
      // TODO Auto-generated catch block 
      } catch (final IOException e) { 
       runOnUiThread(new Runnable() { 
         public void run() { 
          Toast.makeText(MainPetakTetap.this, "IOE response " + e.toString(), Toast.LENGTH_LONG).show(); 
         } 
        }); 
      // TODO Auto-generated catch block 
      } 

      // stop gps 
      lman.removeUpdates(locaListener); 
      constantsCursor.requery(); 
      return null; 
     } 

     @Override 
     protected void onProgressUpdate(Boolean... progress) { 
      // line below coupled with 
      // getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS) 
      // before setContentView 
      // will show the wait animation on the top-right corner 
      MainPetakTetap.this.setProgressBarIndeterminateVisibility(progress[0]); 
     } 

     @Override 
     protected void onPostExecute(String result) { 
      publishProgress(false); 
      pDialog.dismiss(); 
      // Do something with result in your activity 
     } 

    } 

но когда диалог показать прогресс посыла, тост показать Сукчес но заставить близко. это мой logcat

03-25 11:57:40.320: ERROR/AndroidRuntime(5704): FATAL EXCEPTION: AsyncTask #1 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704): java.lang.RuntimeException: An error occured while executing doInBackground() 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.os.AsyncTask$3.done(AsyncTask.java:200) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.FutureTask.setException(FutureTask.java:125) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.lang.Thread.run(Thread.java:1019) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704): Caused by: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.ViewRoot.checkThread(ViewRoot.java:2932) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.ViewRoot.requestLayout(ViewRoot.java:629) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.widget.ScrollView.requestLayout(ScrollView.java:1299) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.view.View.requestLayout(View.java:8267) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.widget.AbsListView.requestLayout(AbsListView.java:1124) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.widget.AdapterView$AdapterDataSetObserver.onChanged(AdapterView.java:790) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:31) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.widget.BaseAdapter.notifyDataSetChanged(BaseAdapter.java:50) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.widget.CursorAdapter$MyDataSetObserver.onChanged(CursorAdapter.java:385) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:31) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.database.AbstractCursor.requery(AbstractCursor.java:97) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.database.sqlite.SQLiteCursor.requery(SQLiteCursor.java:548) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at hariff.ltis.petaktetap.MainPetakTetap$ProcessSend.doInBackground(MainPetakTetap.java:484) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at hariff.ltis.petaktetap.MainPetakTetap$ProcessSend.doInBackground(MainPetakTetap.java:1) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at android.os.AsyncTask$2.call(AsyncTask.java:185) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) 
03-25 11:57:40.320: ERROR/AndroidRuntime(5704):  ... 4 more 

как исправить это?

переместить бег ui из раздела «Делать в фоновом режиме» в onPostExecute? но как?

Answer 1

вместо runOnUiThread(), просто возвращает сообщение об ошибке и поймать его в onPostExecute(), то вы можете проверить, если результат null а если нет - показывать Toast и делать другие вещи. Кроме того, это лучше двигаться

 lman.removeUpdates(locaListener); 
     constantsCursor.requery(); 

к onPostExecute(), а также.

Answer 2

Вам нужно переместить вызов на cursor.requerry на onPostExecute. Этот курсор привязан к адаптеру списка, поэтому он вызывает код пользовательского интерфейса. Вы можете сделать это только в основном потоке.